Another test of these ideas may be provided by field T or Y dwarfs with unusual colors not predicted by models. Faint, red objects in particular would be
good candidates for the low gravity, methane-poor objects we predict. For example
the cool Y dwarf WISE 1828+2650 [1]}, is both faint and unusually red in \(J-H\)  color [2]}.
While Cushing et al. did detect methane in this object,
chemical equilibrium models do a very poor job fitting the available photometry [2]}.
Near-IR spectra should be obtained of all such color outliers to search for methane spectral features.
